Home / 2,779.53-3,815.67-2,385.87

Finding the Fourth Proportional to 2,779.53, 3,815.67 and 2,385.87

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Solution

The fourth proportional to 2,779.53, 3,815.67 and 2,385.87 is: 3,275.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.53 : 3,815.67 = 2,385.87 : x
  2. Step 2: Convert to fraction form
    2,779.53/3,815.67 = 2,385.87/x
  3. Step 3: Cross multiply
    2,779.53x = 3,815.67 × 2,385.87
  4. Step 4: Simplify right side
    2,779.53x = 9,103,692.58
  5. Step 5: Solve for x
    x = 9,103,692.58/2,779.53
  6. Step 6: Final answer
    x = 3,275.26

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.